port uses, numbers and protocols

Question 1

This protocol: -sends and receives files between systems

Answer 1

FTP (tcp/20, tcp/21)

Question 2

This protocol: encrypted console access

Answer 2

SSH (tcp/22)

Question 3

This protocol: insecure console access

Answer 3

Telnet (tcp/23)

Question 4

This protocol: transfer email between mail servers

Answer 4

SMTP (tcp/25)

Question 5

This protocol: convert domain names to IP addresses

Answer 5

DNS (udp 53, tcp/53)

Question 6

This protocol: web server communication

Answer 6

HTTP (tcp/80)

Question 7

This protocol: web server communication with encryption

Answer 7

HTTPS (tcp/443)

Question 8

This protocol: receive email into a email client

Answer 8

POP3 (tcp110)

Question 9

This protocol: a newer email client protocol

Answer 9

IMAP4 (tcp/143)

Question 10

This protocol: graphical display of remote devices

Answer 10

RDP (tcp/3389)

Question 11

This protocol: register, remove, and find windows services by name

Answer 11

NetBIOS (udp/137)

Question 12

This protocol: windows connectionless data transfer

Answer 12

NetBIOS (udp/138)

Question 13

This protocol: windows connection-oriented data transfer

Answer 13

NetBIOS (tcp/139)

Question 14

This protocol: windows file transfers and printer sharing

Answer 14

SMB (tcp/445)

Question 15

This protocol: Mac OS file transfers

Answer 15

AFP (tcp/548)

Question 16

This protocol: find Mac OS services by name

Answer 16

SLP (tcp/427, udp/427)

Question 17

This protocol: automate the IP address configuration process

Answer 17

DHCP (udp/67, udp/68)

Question 18

This protocol: directory services

Answer 18

LDAP (tcp/389)

Question 19

This protocol: gather metrics and manage network devices

Answer 19

SNMP (udp/161)